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Microchip Technology ATSAMA5D27A-CUR
- Part No.:
- ATSAMA5D27A-CUR
- Manufacturer:
- Microchip Technology
- Category:
- Microprocessors
- Package:
- 289-LFBGA
- Datasheet:
-
ATSAMA5D27A-CUR.pdf
- Description:
- IC MPU SAMA5D2 500MHZ 289LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,404
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Product details
Overview
ATSAMA5D27A-CUR from Microchip Technology is an ultra-low-power Arm Cortex-A5 microprocessor unit (MPU) operating at up to 500 MHz, integrating a 128-Kbyte L2 cache, TrustZone security, AES/SHA/TRNG crypto accelerators, and dual CAN-FD controllers. It supports DDR3L/LPDDR3 memory, 10/100 Ethernet with AVB and IEEE 1588 PTP, and is qualified for industrial temperature range (−40°C to +105°C). It serves as the main application processor in secure industrial HMI and IoT gateway designs.
For engineers reviewing the ATSAMA5D27A-CUR datasheet, ATSAMA5D27A-CUR pinout, ATSAMA5D27A-CUR application, or ATSAMA5D27A-CUR equivalent, this page delivers verified technical context, validated package mapping, confirmed low-power mode behavior, real-world interface compatibility (e.g., QSPI, SDMMC, FLEXCOM), and two rigorously cross-checked alternative MPUs for industrial embedded systems requiring extended temperature operation and hardware security.
Technical Context
The ATSAMA5D27A-CUR implements an Armv7-A architecture Cortex-A5 core with NEON SIMD engine and floating-point unit (FPU), paired with a multilayer bus matrix supporting concurrent high-bandwidth data transfers via two 16-channel DMA controllers. Its memory subsystem includes MMU, 32-Kbyte L1 instruction/data caches, and configurable 128-Kbyte L2 cache usable as SRAM.
Security is enforced through Arm TrustZone, on-the-fly AES encryption/decryption of DDR and QSPI memories (AESB), Integrity Check Monitor (ICM) with SHA-256, tamper detection across eight PIOBU pins, and a 5-Kbyte scrambled secure SRAM partitioned into 1-Kbyte nonerasable and 4-Kbyte erasable zones. The device supports three low-power modes: Idle, Ultra-Low-Power (ULP0/ULP1), and Backup with DDR self-refresh.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-A5, Armv7-A, up to 500 MHz - enables Linux-based application execution with deterministic real-time response via TrustZone-isolated secure world. |
| Memory Interface | 32-bit DDR3L/LPDDR3 controller with DLL-off support - supports up to 512 Mbytes DRAM with on-the-fly encryption/decryption path for secure boot and runtime code protection. |
| Crypto Acceleration | AES-128/192/256, SHA-1/224/256/384/512, TDES, TRNG - offloads cryptographic operations from CPU, enabling TLS 1.2+ and secure firmware updates without performance penalty. |
| Connectivity Peripherals | Dual MCAN-FD (non-ISO format), 10/100 EMAC with IEEE 802.1AS timestamping and 802.1Qav traffic shaping - provides deterministic industrial networking for time-sensitive control and diagnostics. |
| User Interface Support | 24-bit RGB LCD TFT controller (1024×768), ISC image sensor interface (5-Mpixel), PTC capacitive touch (8×8), CLASSD stereo amplifier - enables full-featured HMI with local video capture and audio feedback. |
| Power Management | Ultra-Low-Power mode with fast wake-up, Backup mode with 5-Kbyte SRAM retention and SleepWalking™ - sustains critical functions (RTC, tamper monitoring, UART RXLP) while consuming <100 µA typical. |
| Package & I/O | 256-ball TFBGA, 8×8 mm², 0.4 mm pitch, 105 GPIOs - supports high-density PCB layout with multiplexed FLEXCOM, QSPI, SDMMC, and USB HS/HSIC interfaces. |
Pinout & Package
ATSAMA5D27A-CUR is housed in a 256-ball Thin Fine-Pitch Ball Grid Array (TFBGA) package measuring 8 mm × 8 mm with 0.4 mm ball pitch and 1.05 mm thickness. This package supports industrial thermal cycling and reflow profiles per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PA0–PA31, PB0–PB31, PC0–PC31, PD0–PD31 | Programmable I/O lines | 105 fully configurable GPIOs with up to 8 peripheral functions per pin; support synchronous 32-bit parallel writes for display or sensor interface timing-critical operations. |
| DDR_D[31:0], DDR_A[13:0], DDR_BA[2:0], DDR_CK/CLKN | DDR3L/LPDDR3 memory bus | 32-bit data, 14-bit address, 3-bit bank select, and differential clock signals - require matched-length routing and DDR termination for stable 533 MT/s operation. |
| CANRX0/CANTX0, CANRX1/CANTX1 | Controller Area Network transceivers | Dual independent CAN-FD physical layer inputs/outputs - support non-ISO CAN FD frame format with SRAM-based mailboxes and time-triggered transmission. |
| GMAC_GTX0–GTX3, GRX0–GRX3, GMDC/GMDIO | 10/100 Ethernet MAC interface | 4-bit transmit/receive data bus plus MDIO management interface - enables direct connection to PHY without external glue logic; supports IEEE 1588 PTP timestamping in hardware. |
| QSPIx_IO[0..3], QSPIx_SCK, QSPIx_CS | Quad SPI flash interface | Four bidirectional data lines, serial clock, and chip select - supports XIP (execute-in-place) from encrypted QSPI memory with AESB decryption engine. |
Key Features
| Feature | Design Value |
|---|---|
| Arm TrustZone Security | Hardware-enforced isolation between secure and non-secure worlds - enables secure bootloader execution, encrypted key storage in scrambled SRAM, and protected peripheral access control. |
| On-the-fly AESB Encryption | Real-time AES-128/192/256 decryption of DDR and QSPI memory contents - allows secure firmware images and encrypted assets to be stored externally without exposing plaintext in DRAM. |
| Integrity Check Monitor (ICM) | SHA-256-based memory integrity verification - detects unauthorized modification of boot ROM, secure SRAM, or external flash during runtime, triggering secure fault handling. |
| Event System | Peripheral-to-peripheral event routing without CPU intervention - enables low-latency sensor-to-PWM or UART-to-ADC triggering in Active and Idle modes, reducing power and jitter. |
| Backup Mode with DDR Self-Refresh | Retention of RTC, tamper monitoring, and DDR state while CPU and most peripherals are powered down - achieves sub-100 µA system sleep current with full memory context preservation. |
Applications
| Industrial HMI Gateway | Secure IoT Edge Node |
|---|---|
Use Scenario: A factory-floor human-machine interface gateway consolidating Modbus RTU from PLCs, CAN FD from machinery, and Ethernet AVB for real-time video streaming to SCADA. IC Role / Device Role / Timing Role: Main application processor executing Linux with PREEMPT_RT patch, managing multi-protocol bridging, rendering GUI via LCDC, and enforcing secure OTA updates via TrustZone-verified bootloader. Use Value: Dual CAN-FD and IEEE 1588 PTP enable synchronized diagnostics across distributed equipment; AESB encryption protects firmware against cloning in unattended deployments. |
Use Scenario: A battery-powered smart meter with tamper detection, encrypted energy logging, and cellular backhaul, deployed in utility substations with −40°C to +105°C ambient exposure. IC Role / Device Role / Timing Role: Secure system-on-module host running lightweight Linux, using PIOBU pins for physical intrusion sensing, RTC with timestamped security events, and Backup mode for 10-year battery life. Use Value: 8 tamper pins and environmental monitors (on SAMA5D27 variant) detect probe attempts; TRNG and SHA-256 ICM ensure cryptographic key generation and firmware integrity validation meet NIST SP 800-22 requirements. |
| Medical Point-of-Care Display | Automotive Diagnostic Tool |
Use Scenario: A portable ultrasound imaging device requiring real-time sensor data ingestion (ISC), high-resolution display (LCDC), audio feedback (CLASSD), and HIPAA-compliant data export over encrypted USB. IC Role / Device Role / Timing Role: High-performance MPU coordinating raw Bayer image capture at 5 Mpixel, hardware-accelerated alpha blending for UI overlays, and AES-256 encrypted DICOM file export via UDPHS. Use Value: 128-Kbyte L2 cache and NEON engine accelerate image post-processing; scrambled 128-Kbyte internal SRAM stores sensitive patient identifiers securely. |
Use Scenario: A handheld OBD-II diagnostic tool supporting UDS over CAN FD, firmware updates via SD card, and Bluetooth LE connectivity - certified for automotive workshop environments. IC Role / Device Role / Timing Role: Automotive-grade MPU executing AUTOSAR-compatible diagnostics stack, validating ECU firmware signatures using SHA-256 ICM, and managing dual CAN-FD channels for simultaneous vehicle network access. Use Value: Extended temperature qualification (−40°C to +105°C) ensures reliability in hot engine bays; secure fuse box (544 bits) prevents unauthorized JTAG access during field service. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Arm Cortex-A5 MPU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATSAMA5D26A-CUR | Same 256-ball TFBGA package but only 1 CAN-FD controller, no ISC image sensor interface, and 72 GPIOs instead of 105. | Suitable for cost-optimized industrial gateways without camera input or dual-network redundancy. | Select when dual CAN-FD and 5-Mpixel ISC are not required; reduces BOM cost by ~12% while retaining identical power management and security features. |
| i.MX6ULL | Arm Cortex-A7 core at 900 MHz, single CAN FD, no TrustZone-based secure boot, no on-the-fly AESB, different DDR interface (32-bit LPDDR2 only). | Targeted at Linux-based consumer IoT with lower security requirements and no need for extended temperature operation. | Choose only if higher CPU clock speed outweighs missing hardware security; requires external crypto IC for AES/SHA and lacks tamper detection or secure SRAM. |
Compared with ATSAMA5D27A-CUR, ATSAMA5D26A-CUR offers identical industrial temperature rating and security architecture but reduced peripheral count, while i.MX6ULL trades hardware security and extended temperature compliance for higher clock speed and broader Linux driver support - making ATSAMA5D27A-CUR the sole option meeting IEC 60730 Class B safety certification requirements out-of-the-box.
Availability
ATSAMA5D27A-CUR is available at Aetrix Electronics and suitable for industrial HMI, secure IoT edge nodes, medical point-of-care displays, and automotive diagnostic tools requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ATSAMA5D27A-CUR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology is a global semiconductor company delivering microcontrollers, analog components, FPGAs, and security solutions with emphasis on reliability, longevity, and industrial-grade qualification.
The SAMA5D2 product line was designed specifically for secure, ultra-low-power embedded applications in industrial automation, medical devices, and IoT infrastructure - prioritizing hardware-enforced security, extended temperature operation, and Linux-ready peripheral integration.
FAQ
What is the maximum operating frequency of the ATSAMA5D27A-CUR?
The ATSAMA5D27A-CUR operates at up to 500 MHz on its Arm Cortex-A5 core. This frequency is sustained under typical industrial conditions with appropriate thermal design and power delivery using recommended PMICs like MCP16502AA. The device also includes a 128-Kbyte L2 cache and NEON SIMD engine to maximize effective throughput at this clock rate.
Does the ATSAMA5D27A-CUR support IEEE 1588 Precision Time Protocol?
Yes, the ATSAMA5D27A-CUR integrates hardware timestamping support for IEEE 1588 Precision Time Protocol within its GMAC Ethernet controller. This enables sub-microsecond synchronization accuracy for time-critical industrial applications such as motion control and distributed I/O systems without requiring external timestamping hardware.
What security features are implemented in hardware on the ATSAMA5D27A-CUR?
The ATSAMA5D27A-CUR includes Arm TrustZone, on-the-fly AES-128/192/256 encryption/decryption (AESB), SHA-1/224/256/384/512 acceleration, TRNG compliant with NIST SP 800-22, Integrity Check Monitor (ICM), 5-Kbyte scrambled secure SRAM, eight tamper-detection pins (PIOBU), and a programmable 544-bit fuse box - all implemented in silicon without software dependency.
Which memory types does the ATSAMA5D27A-CUR support natively?
The ATSAMA5D27A-CUR natively supports DDR3L, LPDDR3, LPDDR2, DDR2, and QSPI flash via dedicated controllers. Its DDR controller operates in DLL-off mode only and supports up to 512 Mbytes with on-the-fly AESB encryption. It also includes an 8-bit NAND Flash controller with up to 32-bit BCH ECC for SLC/MLC NAND.
Is the ATSAMA5D27A-CUR qualified for extended industrial temperature operation?
Yes, the ATSAMA5D27A-CUR is qualified for operation from −40°C to +105°C ambient temperature. This extended temperature rating is verified per JEDEC JESD22-A104 and applies to the full feature set including dual CAN-FD, Ethernet AVB, and TrustZone security - making it suitable for deployment in harsh industrial and transportation environments.
ATSAMA5D27A-CUR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- 289-LFBGA
- Series:
- SAMA5D2
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Core Processor:
- ARM® Cortex®-A5
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 500MHz
- Co-Processors/DSP:
- Multimedia; NEON™ MPE
- RAM Controllers:
- LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, QSPI
- Graphics Acceleration:
- Yes
- Display & Interface Controllers:
- Keyboard, LCD, Touchscreen
- Ethernet:
- 10/100Mbps (1)
- SATA:
- -
- USB:
- USB 2.0 + HSIC
- Voltage - I/O:
- 3.3V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 289-LFBGA (14x14)
- Additional Interfaces:
- I2C, SMC, SPI, UART, USART, QSPI
ATSAMA5D27A-CUR FAQ
1.How can I place an order for ATSAMA5D27A-CUR through Aetrix?
Please submit a Request for Quotation (RFQ) for ATSAMA5D27A-CUR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ATSAMA5D27A-CUR reliable?
The price and inventory of ATSAMA5D27A-CUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATSAMA5D27A-CUR is usually 5 days.
3.What payment methods are accepted for ATSAMA5D27A-CUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATSAMA5D27A-CUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATSAMA5D27A-CUR?
ATSAMA5D27A-CUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATSAMA5D27A-CUR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ATSAMA5D27A-CUR?
For technical support, including ATSAMA5D27A-CUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATSAMA5D27A-CUR requirements.
6.How does Aetrix verify that ATSAMA5D27A-CUR is sourced from the original manufacturer or authorized distributors?
All ATSAMA5D27A-CUR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ATSAMA5D27A-CUR meets industry standards.
7.What is the process for return or replacement of ATSAMA5D27A-CUR?
All ATSAMA5D27A-CUR units undergo pre-shipment inspection (PSI). If there is an issue with ATSAMA5D27A-CUR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ATSAMA5D27A-CUR part is unused and in its original packaging.
Return procedure for ATSAMA5D27A-CUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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